Just got a nest thermostat set it up and I have two old thermostats. One for entire house and one thermostat that just controls upstairs. I installed nest in main downstairs here is the wiring
When I run ac it blows out heat not ac and it does it in my upstairs bedroom that is on its own thermostat. Here is the wiring on upstairs unit
here is my best unit I installed
here is my wires
any help would be appreciated. When I turn on heat on nest unit it turns on ac?? But this nest is controlling my upstairs unit I don’t no what to do please help!!!
this is the current unit that I replaced with nest but I have one upstairs that controls just one bedroom zone. I left the upstairs thermostat in place.
I fixed it. Issue was I had a jumper wire on both my thermostats. Now it’s blowing cold ac. Thank god. Here is a photo of my main thermostat downstairs. Had white jumper from w2 to e. Once I hooked that up it works perfect.
now should I try to hook the new nest unit back up now that everything is working? Do I jump the white wire on the nest unit when I hook it up?
as you can see the white wire broke.
this is the unit upstairs that controls zone for one room upstairs that I have. I took off jumper cable and did not take photo and not sure where it went. Now when I turn on ac it blows heat out of wrong zone. So I have broke my entire house ac/heat.
here is the photo you requested.
That picture is for a unit and not a zone controller I think.
A zone controller will look something like this.
